Do we think it's going to be 5*2GB or mixed capacity again? What are the bandwidth implications of various options? Given that they are only doing base Xbox One BC on Lockhart, I guess they didn't need to match the 12GB of the XboneX.
I personally would have felt better about 12, though, from a "what ways might XboxSX games be limited by Lockhart's existence" perspective. I'm giving the benefit of the doubt that that number was arrived at after careful consideration and it won't be an issue, though. Time will tell.
So.... let's assume 14Gbps because they'll be buying in bulk for both SKUs, ergo:
1.
192-bit @ 336GB/s
4x2GB + 2x1GB = 10GB, 6 chips x 32-bit
6GB @ 192-bit, 4GB @128-bit
Requires similarly split pool considerations after the OS reservation. (bad imo)
2.
160-bit @280GB/s
5x2GB = 10GB, 5 chips x 32-bit
3.
128-bit @ 224GB/s
6x1GB + 2x2GB, 8 chips x "16-bit" clamshell
8GB @ 128-bit, 2GB @ 32-bit
Devs only have to worry about <8GB down from SX's 13.5GB
In the future it can reduce to 4 chips without clamshell (1x4GB + 3x2GB)
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Knowing the 4TF target though, I don't imagine they would have gone particularly wide in the first place sooooooooo.........
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